Question : How many kilograms of rice costing INR 52 per kg must be mixed with 35 kg of rice costing INR 45 per kg to get a gain of 10% by selling the resulting mixture of rice at the rate of INR 55 per kg?

Question : If two qualities of a fruit costing INR 20 per kg and INR 38 per kg are mixed in the ratio of 5 : 4, then find the cost of the mixture per kg (in INR).

Question : A grocer mixes two varieties of tea priced at INR 80 per kg and INR 85 per kg in a certain ratio to produce a new variety priced at INR 82 per kg. What is the ratio in which the two varieties were mixed to obtain the new variety?

Question : In what ratio, wheat at INR 23 per kg should be mixed with wheat at INR 14 per kg so that on selling the mixture at INR 20 per kg there is a profit of 25%?

Question : One litre of milk costs INR 40. Water is mixed with milk and the mixture cost becomes INR 30 per litre. Find the ratio of water and milk in the mixture.